li,
ul,
p,
span,
body,
html,
a,
dd,
dt,
img,
textarea,
input,
section,
select,
option {
    padding: 0;
    margin: 0;
    font-size: 12px;
    box-sizing: border-box;
    font-family: 'Microsoft yahei', '-apple-system';
}

body,
html {
    width: 100%;
    height: 100%;
    min-width: 1300px;
    background: #f7f7f7;
}

.down-box {
    min-width: 1300px;
}

a {
    text-decoration: none;
    font-size: 14px;
    color: #6f7074;
}

.header-box {
    height: 80px;
    opacity: 1;
    background: #ffffff;
    box-shadow: 0px 0px 20px 0px rgba(81, 81, 81, 0.04);
    display: flex;
    justify-content: center;
    align-items: center;
}

.down-content-box {
    width: 1220px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 28px;
    text-align: left;
    color: #333333;
    letter-spacing: 1px;
}

.logo-img-box {
    width: 45px;
    margin-right: 14px;
}

.title-name-box {
    line-height: 80px;
    font-weight: 600;
}

.header-right-box {}

.language-img-box {
    cursor: pointer;
    display: none;
}

.banner-box {
    height: 790px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.banner-color-box {
    /* width: 100%; 
    height: 790px;
    position: relative;
    top: 0;
    z-index: 1; */
    position: relative;
    width: 100%;
    height: 790px;
}

.banner-color-box:after {
    content: "";
    display: block;
    position: absolute;
    height: 100%;
    bottom: 0;
    width: 140%;
    min-width: 1440px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(to right, #51ACFF, #4D69DE);
    /* background: linear-gradient(to right, #51ACFF, #5475FE); */
    border-radius: 0 0 50% 50%;
    z-index: 1;
    overflow: hidden;
}

.banner-div-img-box {
    width: 100%;
    height: 100%;
    max-width: 1920px;
    display: flex;
}

.banner-img-box {
    max-width: 100%;
    max-height: 100%;
    margin: auto;
}

.banner-content-box {
    width: 1220px;
    height: 100%;
    /* background: pink; */
    position: absolute;
    top: 0;
    display: flex;
    align-items: center;
    justify-content:center;
    position: absolute;
    z-index: 3;
}

.banner-left-box {
    /* width: 666px; */
    /* margin-left: -25px; */
    /* height: 500px;  */
    /* margin-right: 210px; */
}

.banner-right-box {
    /* margin-right: 25px; */
}

.right-one-box {
    font-size: 58px;
    font-weight: 600;
    color: #ffffff;
    line-height: 82px;
}

.right-two-box,
.right-there-box {
    font-size: 22px;
    font-weight: 400;
    text-align: justify;
    color: #ffffff;
    line-height: 38px;
}

.code-box {
    display: flex;
    margin-top: 65px;
    flex: 1;
    justify-content: center;
    align-items: center;
}

.code-right-box {
    display: flex;
    justify-content: center;
    flex-direction: column;
    /* margin-left: 12px; */
}

.code-name-box {
    text-align: center;
    font-size: 17px;
    font-weight: 400;
    color: #ffffff;
    display: flex;
    align-items: center;
}

.code-name-box:nth-child(2) {
    margin-top: 19px;
}

.code-img-name-box {
    width: 20px;
    height: 24px;
    margin-right: 5px;
}

.device-box {
    width: 1220px;
    height: 685px;
    margin: 138px auto 0;
}

.device-content-box {
    width: 100%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.content-box {
    width: 425px;
    height: 252px;
    text-align: center;
}

.content-box:nth-child(1),
.content-box:nth-child(2),
.content-box:nth-child(3) {
    margin-bottom: 58px;
}

.content-box:nth-child(1),
.content-box:nth-child(2),
.content-box:nth-child(4),
.content-box:nth-child(5) {
    margin-right: 140px;
}


/* .device-img-box {
    width: 123px;
    height: 122px;
} */

.device-name-box {
    height: 30px;
    font-size: 22px;
    font-weight: 600;
    text-align: center;
    color: #333333;
    line-height: 30px;
    margin-top: 30px;
    margin-bottom: 15px;
}

.device-describe-box {
    height: 50px;
    opacity: 1;
    font-size: 18px;
    font-weight: 400;
    text-align: center;
    color: #a5a5a5;
    line-height: 25px;
}

.bottom-box {
    width: 100%;
    /* margin: 100px auto 0; */
    height: 122px;
    opacity: 1;
    background: #ffffff;
    box-shadow: 0px 0px 20px 0px rgba(81, 81, 81, 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.bottom-middle-box {
    width: 1220px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.bottom-one-box {
    font-size: 14px;
    font-weight: 400;
    color: #5b5b5b;
    line-height: 20px;
    letter-spacing: 3px;
    margin-bottom: 10px;
}

.bottom-two-box {
    font-size: 12px;
    font-weight: 400;
    color: #7f7f7f;
    line-height: 17px;
    letter-spacing: 1px;
}

.bottom-filings {
    display: flex;
}

.bottom-filings a {
    margin-top: 10px;
    font-size: 12px;
    font-weight: 400;
    color: #7f7f7f;
    line-height: 17px;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
}

.bottom-filings img {
    width: 20px;
    height: 20px;
    margin-right: 10px;
}